CVE-2025-3928

Commvault Web Server Unspecified

8.8 HIGHActively exploited (CISA KEV)EPSS 2.48%

Published25 Apr 2025
Added to CISA KEV28 Apr 2025
Remediation due19 May 2025

Description

Commvault Web Server has an unspecified vulnerability that can be exploited by a remote, authenticated attacker. According to the Commvault advisory: "Webservers can be compromised through bad actors creating and executing webshells." Fixed in version 11.36.46, 11.32.89, 11.28.141, and 11.20.217 for Windows and Linux platforms. This vulnerability was added to the CISA Known Exploited Vulnerabilities (KEV) Catalog on 2025-04-28.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredLow

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Commvault≥ 11.20.0 < 11.20.217 · ≥ 11.28.0 < 11.28.141 · ≥ 11.32.0 < 11.32.89 · ≥ 11.36.0 < 11.36.46

Remediation

Fixed in

Commvault≥ 11.20.217

Patch & vendor advisories

References

https://documentation.commvault.com/securityadvisories/CV_2025_03_1.htmlVendor Advisory
https://www.bleepingcomputer.com/news/security/commvault-says-recent-breach-didnt-impact-customer-backup-data/Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3928US Government Resource
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-3928Third Party AdvisoryUS Government Resource
https://www.cisa.gov/news-events/alerts/2025/05/22/advisory-update-cyber-threat-activity-targeting-commvaults-saas-cloud-application-metallicThird Party AdvisoryUS Government Resource
https://www.commvault.com/blogs/customer-security-updateVendor Advisory
https://www.commvault.com/blogs/notice-security-advisory-updateBroken LinkVendor Advisory
https://www.commvault.com/blogs/security-advisory-march-7-2025Vendor Advisory

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2025-3928 being actively exploited?

Yes. CVE-2025-3928 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 28 Apr 2025.

How severe is CVE-2025-3928?

CVE-2025-3928 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 2.48% probability of exploitation.

Which products are affected by CVE-2025-3928?

Affected products include Commvault.

How do I fix CVE-2025-3928?

Upgrade affected software to a fixed version, for example Commvault 11.20.217 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-3928 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.